Insole.



J. UAVANAGH, JR.

INSOLB. 7 APPLICATION FILED MAR. 28, 1907.

1, 1 1 3,540. 1 Patented 00c. 13, 1914.

UNITED STATES PATENT OFFICE.

TA MES OAVANAGH, JR., BOSTON, MASSACHUSETTS, ASSIGNOB TO UNITED SHOE MACHINERY COMPANY, OF PATEBSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

INSOLE.

Patented Oct. 13, 1914.

To all whom it may concern:

Be it known that I, JAMESGAYA'NAGH, J12, citizen of the United States, residing at Boston,- in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Insoles; and

I do hereby declare the following to be a full, clear, and exact description of the in- ,vention, such as will enable others skilled in the art to which it appertains to make and use the same.

In preparing an insole for the operation of an inseam shoe sewing machine, a stitchreceiving rib is formed on one surface of the sole near the margin from a point on one side of the sole near the heel end to an opposite point onthe opposite side of the sole. This rib is formed by the action'of knives which either split the edge of the sole to form a lip which is subsequently turned up at substantially right vangles to the surface of the sole, or which split the edge of the sole and form a channel and channel flap, or which form a channel or channel flap and. cut away a portion of the edge of a sole to form ashoulder.

On account of the difiiculty and practical impossibility of entering and removing the knives at the points where the stitch-receiving rib should begin and end, the knives are entered into and removed from the sole at points on the edge of the heel portion of the sole and as a result the heel portion of the sole is weakened So that it is liable to become more or less distorted during the subsequent operations of lasting and heeling' the shoe. Also when the edge of the insole is split and a portion thereof turned up to form a lip, it is necessary to cut the lip at the point where the inseam is to begin and end in order to permit the portion ofthe lip at the heel end of the sole'to be. pressed down flat, this cutting operation being perreceiving rib begin and end, and in utilizing these slits to enter and remove the ribforming knife or knives so that the rib formed by the knives begins at one slit and ends at the other, and the heel portion of the sole is not cut or injured by the knife or knives. The slits may-extend into the sole at right angles to the surface thereof,

but preferably extend obliquely toward the toe end of the sole as thereby no abrupt angle is formed at the junction of the heel and shank portions of the sole, and a better surface is provided to receive thecrimped-in edge of the counter when the shoe is' lasted.

The present invention will be clearly understood from an inspection of the accompanying drawing, in -which- Figure. 1 is a plan view of an insole provided "151]. transverse slits to mark the beginning and end of the stitch-receiving lip; Fig.2 is a view in side elevation of the insole illustrated in, Fig. 1, showing the preferred oblique arrangement of the slits; and Fig. 3 is a plan view of the sole after the sole has been acted upon by the edge splittingand channeling knives of achanneling machine, and after a portion of the edge of the sole has been turned up to form a lip.

'As illustrated in the drawing, the insole 1 is first provided with two sits 2 and 3 which extend'transversely of'the sole from catch edge toward the medial line and which are located at the points at which the stitchreceiving lip is to begin and end. These slits.

may be made by means of a handknife or by any suitable machine adapted to the purpose. The slits preferably extend obliquely to the surface of the sole toward the toe end as indicated in Fig. 2.

The insole provided with, slits, as indicated in Figs. 1 and 2, constitutes a complete article which is produced before the sole is.

subjected to the action of the knife or knives of a machine for forming the stitch-receiving rib. The stitch-receiving rib may be formed by subjecting the insole to the action of any suitable insole channeling, edgesplitting, or edgeshouldering machine. I'Vhen the insole is presented to such a machine the slits 2 and 3 provide respectively an entrance and an exit for the rib-forming knife or knives so that the stitch-receiving rib begins at the slit 2and ends at the slit 3.

In Fig. 3 a channel flap is indicated at 4, and an n turned lip is indicated-at 5, the channel ap having been formed by the channeling knife of a channeling and edge splitting machine, and the lip having been formed by the splitting knife of such machine and subsequently turned up at substantially right angles to the surface of the sole. In this sole it will be seen that the heel portion of the sole is not cut or injured but is in its original flat condition, and that When the shoe is lasted no cutting operation need be performed upon the upturned lip-5. It will also be seen that the stitch-receiving rib begins and ends at precisely the desired points so that the counter can be readily lasted over the heel seat and secured in the proper position. By providing the insole with slits before the stitch-receiving rib is formed the points at which the rib begins and ends are determined with accuracy and uniform results upon a large number of soles can be secured.

The nature and scope of the present invention havin been indicated, and the mannor in which t e invention is to be practised having been'specifically described, what is claimed is 1. An insole provided with transverse slits extending part way only through the thickness of the insole, said slits marln'ng the beginning and the end of the stitch receiving rib, said insole being provided with astitch receiving rib extending around the edge of the sole from one of said slits to the other and the edge of the heel being intact or solid.

2. An insole blank provided with transverse slits extending obliquely to the surface of the sole toward the toe end of the sole and part way only through the thickness of the sole arranged to mark the beginning and end of the stitch-receiving rib, said insole being provided with a stitching rib and having the edge of its heel portion intact or solid.

In testimony whereof I afiix my signature, in presence of two witnesses.

JAMES CAVANAGH, J B. Witnesses M. L. GILMAN, Amman H. HILDRETH. 

